DYNAMIC RADAR CRUISE CONTROL SYSTEM, Diagnostic DTC:C1A02

DTC Code DTC Name
C1A02 Vehicle Information Not Obtained

DESCRIPTION

When a new driving support ECU assembly is installed, it receives vehicle specification information (destination, steering wheel position, 2WD or AWD information, etc.) from the main body ECU (multiplex network body ECU) and stores the information. DTC C1A02 is stored when the driving support ECU assembly receives the vehicle specification information from the main body ECU (multiplex network body ECU) but cannot store it.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1A02

Vehicle Information Not Obtained

While the ignition switch is turned ON and the dynamic radar cruise control system is operating, the driving support ECU assembly cannot stored the vehicle specification information for approximately 0.1 seconds or more.

Driving support ECU assembly

CAUTION / NOTICE / HINT

Note:

  • When replacing the driving support ECU assembly, always replace it with a new one. If a driving support ECU assembly which was installed to another vehicle is used, the information stored in the driving support ECU assembly will not match the information from the vehicle. As a result, a DTC may be stored.

  • First check the CAN communication system by following How to Proceed with Troubleshooting. After checking that there are no malfunctions in the CAN communication system, proceed with troubleshooting.

    for LHD with Central Gateway ECU:Click here

    for RHD with Central Gateway ECU:Click here

PROCEDURE

  1. CHECK FOR DTCs

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Clear the DTCs.

      Click here

      Powertrain > Radar Cruise2 > Clear DTCs

    4. Make sure that the DTC detection conditions are met.

      Tip:

      If the detection conditions are not met, the system cannot detect the malfunction.

      1. Turn the ignition switch to ON.

      2. Turn the dynamic radar cruise control system on using the cruise control switch (ON/OFF).

      3. Wait for 0.1 seconds or more.

    5. Enter the following menus: Powertrain / Radar Cruise2 / Trouble Codes.

    6. Check for DTCs.

      Click here

      Powertrain > Radar Cruise2 > Trouble Codes

      Result

      Result

      Proceed to

      DTC C1A02 is output

      A

      DTC C1A02 is not output

      B
    A

    REPLACE DRIVING SUPPORT ECU ASSEMBLY

    for LHD:Click here

    for RHD:Click here

    B

    USE SIMULATION METHOD TO CHECK

    Click hereClick here